Containment Structure For an Electronic Device

Abstract

In one embodiment, a containment structure ( 230 ) for an organic composition ( 240 ) is provided. The containment structure ( 230 ) includes an undercut layer ( 210 ) and an overlying layer ( 220 ), wherein the undercut ( 210 ) and overlying ( 220 ) layers define a volume for receiving the organic composition ( 240 ) in liquid form.

1 . A containment structure for an organic composition, comprising:
 an undercut layer; and   an overlying layer, wherein the undercut and overlying layers define a volume for receiving the organic composition in liquid form.   
     
     
         2 . The containment structure of  claim 1 , wherein the undercut layer has a first height, and the overlying layer has a second height substantially greater than the first height. 
     
     
         3 . The containment structure of  claim 2 , wherein the first height is predetermined so that a portion of the volume defined by the undercut layer is completely filled with the organic composition after the organic composition has dried. 
     
     
         4 . The containment structure of  claim 1 , wherein the undercut layer is formed from multiple layers of photo-patternable materials having different exposure and development responses. 
     
     
         5 . The containment structure of  claim 1 , wherein surfaces of the undercut layer and the overlying layer that define the volume are rendered non-wetting. 
     
     
         6 . The containment structure of  claim 1 , wherein the volume is defined, at least in part, by a wall of the overlying layer, and the wall is angled to allow wetting of the wall by the liquid composition. 
     
     
         7 . The containment structure of  claim 6 , wherein the wall has a surface treatment that renders the wall non-wetting. 
     
     
         8 . The containment structure of  claim 1 , wherein the overlying layer includes walls that define a portion of the volume, the walls being positively sloped in relation to the undercut layer. 
     
     
         9 . A method for forming a conducting polymer device, comprising:
 providing an undercut layer;   applying an overlying layer to the undercut layer such that the undercut and overlying layers define a volume for receiving an organic composition in liquid form; and   introducing the organic composition in liquid form into the volume.   
     
     
         10 . The method of  claim 9 , wherein the volume is defined such that the organic composition, upon drying, completely fills the portion of the volume defined by the undercut layer. 
     
     
         11 . The method of  claim 9 , wherein the undercut layer is provided with a first height, and the overlying layer is applied to have a second height that is substantially greater than the first height. 
     
     
         12 . The method of  claim 9 , wherein said providing step further comprises applying multiple layers of photo-patternable materials having different exposure and development responses. 
     
     
         13 . The method of  claim 12 , wherein the multiple layers of photo-patternable materials are applied by deposition. 
     
     
         14 . The method of  claim 9 , further comprising rendering surfaces of the undercut layer and the overlying layer that define the volume non-wetting. 
     
     
         15 . The method of  claim 9 , wherein the volume is defined, at least in part, by a wall of the overlying layer, and the wall is angled to allow wetting of the wall by the liquid composition. 
     
     
         16 . The method of  claim 9 , wherein the overlying layer includes walls that define a portion of the volume, the walls being positively sloped in relation to the undercut layer. 
     
     
         17 . An organic electronic device, comprising:
 an undercut layer having a first height;   an overlying layer having a second height that is substantially greater than the first height and wherein the overlying layer is disposed adjacent to the undercut layer;   a volume defined by a positively-sloped wall formed in the overlying layer and a surface of the undercut layer; and   an organic composition that is introduced into the volume when the organic composition is in liquid form.   
     
     
         18 . A composition including the containment structure of  claim 1 . 
     
     
         19 . An organic electronic device having an active layer including the containment structure of  claim 1 . 
     
     
         20 . An article useful in the manufacture of an organic electronic device, comprising the containment structure of  claim 1 .